![background image](http://html1.mh-extra.com/html/icom/vhf-ic-f50/vhf-ic-f50_service-manual_4284357055.webp)
Check the “LV” item on the
CS-F50 ADJ’s display.
Check the “LV” item on the
CS-F50 ADJ’s display.
Loosely couple a frequency
counter to the antenna con-
nector.
Connect an RF power meter
to the antenna connector.
Connect an FM deviation
meter to the antenna connec-
tor through the attenuator.
5 - 4
5-2 SOFTWARE ADJUSTMENT (TRANSMITTING)
Select an operation using [
↑
] / [
↓
] keys, then set specified value using [
←
] / [
→
] keys on the connected computer keyboard.
1
2
3
4
1
1
2
3
1
2
3
• Operating CH
: CH3
• Receiving
• Operating CH
: CH3
• Transmitting
• Operating CH
: CH11
• Receiving
• Operating CH
: CH11
• Transmitting
• Operating CH
: CH11
• Output power
: Low1
• Connect an RF power meter or 50
Ω
dummy load to the antenna connector.
• Transmitting
• Operating CH
: CH1
• Transmitting
• Operating CH
: CH2
• Transmitting
• Operating CH
: CH3
• Transmitting
• Operating CH
: CH4
• Set the FM deviation meter as:
HPF
: OFF
LPF
: 20 kHz
De-emphasis : OFF
Detector
: (P–P)/2
• Connect the audio generator to the multi
connector through the JIG cable (*OPC-
966) and set as : 1.0 kHz/150 mVrms
• Transmitting
• Operating CH
: CH5
• Transmitting
• Operating CH
: CH6
• Transmitting
PLL LOCK
VOLTAGE
[LV (RX LVA)]
[LV (TX LVA)]
REFERENCE
FREQUENCY
[REF]
OUTPUT
POWER
[Power (Hi)]
[Power (L2)]
[Power (L1)]
FM
DEVIATION
[MOD N]
(Narrow)
[MOD Ratio]
(Middle)
[MOD Ratio]
(Wide)
MAIN
MAIN
Top
panel
Top
panel
Top
panel
1.0 V
1.0 V
3.3–4.5 V
(Verify)
3.3–4.5 V
(Verify)
470.0000 MHz [L]
520.0000 MHz [H]
4.0 W
2.0 W
1.0 W
±2.10 kHz
±3.20 kHz
±4.10 kHz
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
UNIT
LOCATION
Summary of Contents for VHF IC-F50
Page 1: ...SERVICE MANUAL VHF TRANSCEIVER ...
Page 31: ...R601 VHF B6034B 9 3 VR BOARD TOP VIEW BOTTOM VIEW 9 5 ...
Page 37: ......
Page 38: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14007IZ C1 2003 Icom Inc ...
Page 39: ...SERVICE MANUAL UHF TRANSCEIVER ...
Page 71: ...R601 B6034B 9 3 VR BOARD TOP VIEW BOTTOM VIEW 9 5 ...
Page 77: ......
Page 78: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14010IZ C1 2004 Icom Inc ...